Method and system for recognizing smart key

Abstract

Disclosed herein is a method for recognizing a smart key. The method includes determining, by a controller, a predicted location, when a noise signal corresponding to a communication frequency area between a vehicle and the smart key is configured to be generated, using GPS information. The method further includes attempting to detect, by the controller, the smart key at the predicted location and amplifying, by the controller, an intensity of a detection signal transmitted by the vehicle with respect to the smart key when the smart key is not detected. Additionally, the method includes storing, by the controller, coordinates of the predicted location and the intensity of the detection signal when the smart key is detected by amplifying the detection signal.

What is claimed is: 
     
         1 . A method for recognizing a smart key, comprising:
 determining, by a controller, a predicted location, when a noise signal corresponding to a communication frequency area between a vehicle and the smart key is configured to be generated, using global positioning system (GPS) information;   attempting to detect, by the controller, the smart key at the predicted location;   amplifying, by the controller, an intensity of a detection signal of the vehicle with respect to the smart key when the smart key is not detected; and   storing, by the controller, coordinates of the predicted location and the intensity of the detection signal when the smart key is detected by amplifying the detection signal.   
     
     
         2 . The method as set forth in  claim 1 , wherein the determining the predicted location comprises:
 adjusting, by the controller, the intensity of the detection signal when the vehicle is located at the predicted location where the noise signal may be generated.   
     
     
         3 . The method as set forth in  claim 1 , wherein the amplifying the intensity of the detection signal comprises:
 determining, by the controller, that the smart key is removed from the vehicle, when the detection of the smart key fails after the intensity of the detection signal reaches a predetermined limit   
     
     
         4 . The method as set forth in  claim 1 , wherein the amplifying the intensity of the detection signal comprises:
 storing, by the controller, corresponding coordinates as a limit location when the smart key is not detected when the intensity of the detection signal has reached a predetermined limit and the detection of the smart key has failed,   
     
     
         5 . A system for recognizing a smart key, comprising:
 a global positioning system (GPS) receiving device configured to provide GPS information regarding a predicted location where a noise signal corresponding to a communication frequency area between a vehicle and the smart key is configured to be generated; and   a controller configured to:
 amplify the intensity of a detection signal transmitted by the vehicle in response to the smart key not being detected at the predicted location; and 
 store coordinates of the predicted location and an intensity of the detection signal in response to detecting the smart key by amplifying the intensity of the detection signal. 
   
     
     
         6 . The system as set forth in  claim 5 , wherein the GPS receiving device comprises a database regarding predicted locations when noise signals may be generated. 
     
     
         7 . The system as set forth in  claim 5 , wherein the controller is further configured to:
 store a predetermined limit value of the intensity of the detection signal; and   cease detecting the smart key when the intensity of the detection signal reaches the predetermined limit value.   
     
     
         8 . A non-transitory computer readable medium containing program instructions executed by a processor or controller, the computer readable medium comprising:
 program instructions that receive global positioning system (GPS) information regarding a predicted location where a noise signal corresponding to a communication frequency area between a vehicle and the smart key is configured to be generated; and   program instructions that amplify the intensity of a detection signal transmitted by the vehicle in response to the smart key not being detected at the predicted location; and   program instructions that store coordinates of the predicted location and an intensity of the detection signal in response to detecting the smart key by amplifying the intensity of the detection signal.   
     
     
         9 . The non-transitory computer readable medium of  claim 8 , further comprising:
 program instructions that store a predetermined limit value of the intensity of the detection signal; and   program instructions that cease detecting the smart key when the intensity of the detection signal reaches the predetermined limit value.